The murderer uploaded the video very carefully this time, and did not give the Internet police a chance at all. He did not choose to be monitored all over the Internet café, but used a certain APP that can crack the password of other people's wireless networks, directly invade the network and upload it with a mobile phone, given that China does not need a real-name system to buy a mobile phone, and black cards are still everywhere although they have been sorted out several times, even if the Internet police know the physical address of the mobile phone used by the murderer, it is useless.

Ironically, it wasn't until they saw the video captured from the internet that the police found the equipment that the killer had left behind in the Cultural Park to film.

On the window on the left side of the underground exhibition hall, there is a bright camera. In fact, there was originally a surveillance camera here, but the staff of the Cultural Park all knew that their camera here was an ornament, who would have thought that the murderer would unknowingly change to a usable one that could be hung there to film the whole process of his crime?

The fire site is near this camera, the effect of high temperature makes it basically no test value after being collected by the police, the network police in accordance with the wireless signal transmission distance regulations of this model of camera, found a mini router used to convert and transmit signals in the grass not far away, and after that, there is no trace.

The murderer took such a painstaking effort to cover up his whereabouts, of course, he would not be stupid enough to let the police find clues from these things, and the forensic personnel who did not give up dismantled all the things, and had to admire the murderer's patience and caution, and even the nameplate that came with the router was torn off.

At the beginning of the video, everything is normal, and then the bottom right corner of the screen is a little white light flashing from time to time, it should be that the magnesium bar is ignited. Due to the angle, the camera cannot see the magnesium strips that ignite the thermite.

It didn't take long for the white light to disappear, and then everything was so calm that the camera couldn't see the thermite directly below it.

In the unchanging underground exhibition hall, Wen Mo can only see the slow passage of time from the light. About half an hour later, the exhibition hall suddenly went on with an alarm bell, and all the automatic fire extinguishing sprinklers began to spray water. It should be that after the thermite reaction has been going on for some time, the accumulated heat triggers the fire alarm.

After that, the scene that everyone didn't want to see was staged: several staff members pushed the door and looked into the exhibition hall. At this time, there was no open flame in the exhibition hall. This made the staff feel safe, and Wang Chen and the two deceased went to the exhibition hall and walked straight to the innermost, wanting to open the glass cover. Take out a few exhibits.

They took out a book and a piece of gray pottery. Wrap these two items carefully first. When I was holding it in my hand and turning around to pick up a piece of silk fabric to the right, there was an explosion in the exhibition hall.

That's it for the video. Apparently, the explosion blew up the camera that recorded the video at the same time.

From beginning to end, the killer never showed up, it was a gorgeous performance that he had carefully planned, everything was ready, the actors were in place, and he just had to sit quietly behind the scenes as a director.

Are these three arson cases really committed by a murderer?

If so, then why was he so jerky and ferocious in the first two cases, and in the third case, he became a confident veteran, not anxious or impatient, and could kill people thousands of miles away. Even if you are a criminal, the criminal methods need to be improved through continuous learning, and it is definitely not one or two arsons that can bring such a qualitative leap.

If not, in the same city and in the same time period, there are two arsonists with extreme psychological abnormalities, the probability is unimaginably low, she has no evidence, she can only rely on judgment that is almost based on intuition, misassess the criminal, she was punished for a small matter, delay the arrest, God knows how much storm he will set off in H City, the safety of people's lives, can she afford it alone?

Could it be that we can only wait for the murderer to commit the crime again? Wen Mo's mood was a little heavy, whether these three cases were committed by one person or two people separately, he or they at least made their attitude very clear: arson is a way for them to find balance in their strongly unbalanced mentality, and the murderous behavior carried out at the same time will only bring them greater control and pride, and it can satisfy their perverted desire for expression better than arson. When arson is reduced to a means rather than an end in itself, the next time, the next time, they will choose a more challenging and representative object. For the police, that means more deaths and worse social repercussions.

After the meeting ended, Wen Mo pushed Luo Qin back to the guest house without saying a word, and the new arson case did not give her more analysis data, but made her more and more doubtful in her heart, which is not a good phenomenon. After recuperating for psychological reasons and then returning to work, she demands a lot more from herself than she did a year ago, she doesn't want to give anyone the impression that she has become vulnerable, she wants to prove herself again and again.

When she entered the room, Wen Mo was still a little depressed, whether she wanted to admit it or not, Cui Zhijia's actions in the past had permanently changed some aspects of Wen Mo.

Luo Qin couldn't help but break the silence in the room: "I'll talk about it." "She is a little excited, she has learned to apply, she has been learning for a while, and she has to use it.

Wen Mo looked at Luo Qin and motioned for her to continue.

"You've taught me to start with the basics, step by step.

The first step is to analyze the motive for the crime.

If the types of crimes are divided according to the motive of the crime, the crime can be basically divided into three categories: interests, emotions, and expressions. The interest category of course refers to crimes committed for the purpose of obtaining money, such as theft, robbery, etc. Emotions refer to intentional injury, murder of passion, and other crimes that erupt because of momentary intensity or long-term forbearance, and the purpose is to vent dissatisfaction. Expressive crimes mainly refer to vicious crimes such as explosions, arson, poisoning, and digging water against an unspecified number of people, and the victims of such crimes often have no direct connection with the murderer, and the murderer does not want to get benefits from this, but more to pursue the desire for control.

Among the expressive crimes, arson is the most characteristic one, and the biggest feature is that it harms people and disadvantaged them, because the first two types of crimes are still harmful to others, whether they are for the benefit of real money or the need to vent their emotions. Of course, it is wrong to harm others and profits, but ordinary people will still choose to do it. However, harming others and disadvantage is beyond the thinking logic of ordinary people, so behind it must be the criminal's outlook on life, world view, and values that have been distorted step by step in social life and family life. And it is precisely this deformed three views that causes the murderer to desperately want to obtain a glimmer of accomplishment and pride that they cannot obtain through normal channels of expression in real life. Therefore, this kind of crime should be an alternative way of expression, that is, the offender tries to temporarily gain control and the right to speak through his behavior, so as to achieve the purpose of expressing his personal will.

Therefore, the general psychological portrait of arsonists is 20 to 30-year-old males, whose work is mainly to sell labor, who is relatively thin and weak, has a low income, behaves submissively in real life, has a low sense of existence, is introverted, has a low level of education, is unmarried or divorced, and the trigger for starting arson is likely to be a major event that has affected him recently in his life, the death of a loved one, or unemployment. ”

"Yes, to put it all in, what do you think of these three specific cases?"

"I can't tell." Luo Qin paused: "I feel that this criminal is a very smart person. In the first two cases, he only used the simplest method to achieve the purpose of arson, a combination of gasoline and a lighter, and he chose to kill people who were too old to resist. The third case has some high-tech overtones, and the person who died has become an adult male. He must be a good learner, and now that the Internet is so advanced, he can find any knowledge he needs from it, and put it into practice without any big mistakes, which shows that he is very smart. ”

"So, do you think that these three cases must be the same person?"

"I guess so. If not, why do the three cases have so much in common? There is also the act of shooting a video after arson. Even if there are two different criminals, it is impossible for both of them to choose the same expression, right? The video of the crime on the Internet always proves that the criminal is very arrogant in his heart, and he believes that even if he publishes his crime process, the police will not be able to find clues from it. ”

Luo Qin said more and more: "One of the main reasons for the arsonist's inner imbalance is that he feels that he is seriously underestimated in real life, his talent and his ability are not recognized by everyone, and he thinks that his self-esteem has been seriously trampled on, so he chooses the extreme way of arson to express his demands." But his education level also determined that arson, a violent crime with little technical content, was more suitable for him. Igniting a fire can achieve great damage. ”

Then, how could he prove that he was actually a capable man? Think about it, thermite, if I hadn't searched the Internet after I arrived at the scene yesterday, I really don't know what thermite is, why can it cause an explosion instead of extinguishing the fire. He is progressing and is becoming more dangerous. ”

Maybe it's really that she's thinking too much. Wen Mo lowered her head and thought about it, feeling that what Luo Qin said was very reasonable.

On Monday, when the underground exhibition hall was closed, there were few tourists in the cultural park, and if the murderer insisted on his original style and stayed at the scene to shoot videos, the possibility of exposure was very high, and this time his arson methods changed, the time and degree of damage of the explosion were uncontrollable, and if he was careful enough, he would definitely not get too close, so as not to hurt himself and could not explain it.

From this point of view, there is a high probability that the three cases were committed by the same person.

But Wen Mo always felt that something was wrong, but Luo Qin was sure of one thing: if it was really two murderers, the style would not be so unified. Arsonists are inferior and arrogant, and they will not be willing to imitate others.

Hopefully her instincts were wrong.

At ten o'clock in the evening, a small hotel.

A small room for 30 yuan a day, even the windows have become a luxury. I laughed self-deprecatingly, but I couldn't bear it at the thought of not having an ID card here.

In the dim light, the volume of the TV is turned on to the maximum, so that I can ignore the intermittent sounds of love between men and women around me, I am waiting, waiting for someone. (To be continued......)

PS: Thank you Huang Yunqiu for the big ticket ~~~